In his article published inProceedings of the National Academy of Sciences, a group of scientists notes that the human hand
The human body emits light in the invisibleIR range, including hands. The researchers noted that this radiation source could potentially be detected and used in a variety of applications, from signal generation to encryption systems. They also noted that since the hand has multiple fingers, the IR radiation can be considered multiplexed.
IR is a form of electromagnetic radiation.Its waves are longer than that of visible light, so people cannot observe them. Previous studies have shown that the human body emits such radiation due to body heat. Electromagnetic radiation carries radiant energy and its behavior is classified as a quantum particle and a wave. Previous research has also shown that electromagnetic radiation can be used in a variety of applications, including medical imaging devices. And IR light, in particular, allows the use of night vision goggles, devices for spectroscopy and for the treatment of burn victims. In the new work, researchers found that very small amounts of infrared radiation from human hands are enough to be used in a variety of devices.
Scientists began by creating a device that will separateIR radiation emitted by the hand from external infrared light. They then sprayed the low-reflective material onto the aluminum base. Scientists have found that together, these two devices can be used to encrypt messages at ambient temperatures.
Researchers speculate that their deviceproves that infrared radiation generated by human hands is sufficient to create devices based on it. They also point out that their device can be modified. The goal is to use your fingers as encryption keys.
Read more
The first accurate map of the world was created. What's wrong with everyone else?
NASA told how they will deliver samples of Mars to Earth
Scientists explain the appearance of "spiders" on the surface of Mars